The Brilliant Mr. Feynman
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On July 16th, 1945, a team of U.S. scientists based in Los Alamos, New Mexico, conducted what their leader, J. Robert Oppenheimer, had named the Trinity Test. They were detonating a new kind of bomb way out in the desert, a couple hundred miles from the secret lab at Los Alamos where they had created it. The U.S. president, Harry Truman, seemed to fully grasp the magnitude of this moment.

It is an atomic bomb. It is a harnessing of the basic power of the universe. Oppenheimer had put together a dream team of experienced physicists, many of them recent refugees from Nazi Germany. Also playing a minor but important role was a 24-year-old physicist from Queens, New York, named Richard Feynman. Years later, here is how Feynman described watching the Trinity test. Okay, time comes.

and this tremendous flash, so bright,

And I see this purple splotch on the floor of the truck. And I says, that ain't it. That's an afterimage. So I turn back up and I see this white light changing into yellow and into orange. The clouds form and then they disappear again. And then finally a big ball of orange that start at the rise and below a little bit and get a little bit black around the edges. And then you see it's a big ball of smoke with flashes on the inside of the fire going out of the heat.

Yes, that was the bomb.

Just a few weeks later, the U.S. dropped one of these new atomic bombs on Japan. President Truman. A short time ago, an American airplane dropped one bomb on Hiroshima and destroyed its usefulness to the enemy. That bomb has more power than 20,000 tons of TNT. With this bomb, we have now added a new and revolutionary increase in destruction.

Hiroshima was destroyed. Tens of thousands of Japanese were killed. Three days later, the U.S. dropped a second bomb on the port city of Nagasaki. Again, the carnage was extreme. Six days later, Japan surrendered, putting an end to World War II. The U.S. victory was, of course, welcome.

But Richard Feynman was among those who wondered about the cost of the victory. My first reaction after I was finished with this thing was, it's useless to make anything. Feynman thought that with the existence of nuclear weapons, it was only a matter of time before we humans would wipe ourselves off the earth. I remember being in New York with my mother in a restaurant right after, immediately after. I would see people building a bridge, and I would say, they don't understand. I really believe...

That it was senseless to make anything because it would all be destroyed very soon anyway. He would take in a view and he would automatically visualize destruction from a bomb. That's Michelle Feynman, his daughter. His entire being was permeated by his effort at the war and I don't think that it was a happy time at all.

His father had died, his wife had died. He would look at people building things and think, "Why bother?"

For five years after the war, Feynman taught physics at Cornell University. He was depressed and restless. He had a hard time engaging in his work, a problem he'd never had before. Winters in upstate New York were long and cold. He needed to get away. A friend of his said, what are you doing this summer? And he said, oh, I was going to go to South America. And he said, fantastic. Come to Brazil. He had to learn Portuguese quickly. That trip lasted a long time.

Lasted six weeks, but Feynman returned shortly after for his sabbatical year to teach at the Brazilian Center for Research in Physics in Rio. At least part of his salary was paid by the U.S. State Department. Feynman had grown up near the beach in far Rockaway, Queens in New York City. The beaches in Rio were a little bit different from the beaches in Queens. More samba music, more sun, more fun.

Feynman wrote a letter to his physicist friend Enrico Fermi. I get lots of ideas at the beach, he said. So when his sabbatical was over, Feynman happily left Cornell for good and took a position at the California Institute of Technology. California was kind of a fresh start for him. He had open sky and sunny weather and maybe because of his

in Los Alamos and really enjoying the rugged countryside, that probably set him off.

Caltech is in Pasadena, a picturesque and relatively old city just northeast of downtown Los Angeles. It's still got flourishes of old world wealth and flourishes of California hippie, too, with the Caltech nerd vibe snuggled comfortably between them.

It seemed like a good idea for us to spend some time in Pasadena to get a better feel for Richard Feynman. We will be driving by the house where I grew up, and then we're going to the cemetery and we will see where my parents are. Pasadena is known as the City of Roses. It hosts the annual Rose Parade.

So we will hear about some Feynman roses. But Caltechie was a hero right up to the end. And some thorns. He was an old-fashioned sexist. The curious, brilliant, vanishing Mr. Feynman, part two of our series, begins now. This is Freakonomics Radio, the podcast that explores the hidden side of everything with your host, Stephen Dubner. Whoa!

Part two, The Brilliant Mr. Feynman.

Chapter four, Feynman, the scientist. Richard Feynman joined the Caltech faculty in 1950, and he stayed there until he died 38 years later. For most of that time, he wasn't well known to the wider public, but he was a bit of a celebrity in Pasadena, especially among his fellow academics. He stood out for his wit, which had some sharp edges, for his bongo playing, which

And also for the van he drove. It's a Dodge Tradesman van, and it's the extended version. It gets horrifying gas mileage. It's super loud. It puts out clouds and clouds of hellish hydrocarbons when it runs. And it's incredibly long and uncomfortable to drive. That is Seamus Blackley, who is best known for having helped create the Xbox for Microsoft.

He never met Richard Feynman, but he has been a fan since he was a teenager, which is why today he is the keeper of Feynman's old van. We visited him at the garage in Pasadena where he keeps it. So think of like a 70s plumber who painted his truck this horrible two-tone beige. Yeah.

And that's what Dick Feynman decided to buy when he got his Nobel Prize. On the sides of the van are some painted patterns that have been mistaken for hieroglyphics and Native American symbols. If you don't know what they are, it looks like a homeless guy has drawn on the side of this van. Most people don't give it a second look, but if you're driving somewhere and a physicist sees it, they freak out and run at you, and, like, you almost kill them and stuff. So the van was a...

So context is my parents like to camp and not go to a campground, but go to kind of the road, less traveled. You know, if you go to like a fork in the road and you see one side is kind of pristine and the other side looks treacherous. Oh, we'll go to the treacherous side. And at some point when I think I was in first grade or so, we got this cool van and they got it all set up for camping.

My mom was very careful and thoughtful about how things should work out. You know, there was a table that could be removed. The seats would go flat so somebody could sleep there and then my brother could sleep in the back. And then I had a hammock that was in the front and curtains. And so we were good to go.

And funny enough, they had this van decorated in a custom paint job, and they decided to put Feynman diagrams on it. And what is a Feynman diagram? So symbols that my father came up with to express, I don't know, light. I'm not sure. You'd have to talk to a physicist about that. I'm John Preskill.

I am the Richard P. Feynman, professor of theoretical physics at the California Institute of Technology. So picture this diagram. There are these two lines, both with arrows on them. And then there's a line connecting the two. So it looks like one rung of a ladder. And the line going across is the Wigley line. That's the photon that's being emitted by one particle and absorbed by the other. Now we could have more photons. So now add another rung to the ladder. Now we've got...

the one line with an arrow on it, solid line, let's say going up, and now another line with the arrow going down, that's the electron and the positron. Now there are two rungs. There's a wiggly line and then another wiggly line, and that's another Feynman diagram. The electron and positron

The positron can collide with one another and that can give rise to particles of light, photons, but then those photons convert to other particles like quarks and anti-quarks and those interact with other particles

like gluons and so on. And to keep track of all those things that can happen and how to quantitatively evaluate how all those different processes contribute to the total rate, that's a pretty complicated problem. Feynman diagrams can help you organize that type of computation.

These visual simplifications made quantum electrodynamics easier to work with, even for trained physicists. Here is the science writer Charles C. Mann.

These are incredibly difficult and unwieldy for 99.999% of the human race. And that 0.001% that could work with them was Julian Schwinger. Julian Schwinger and Richard Feynman had a lot in common. They were both born in 1918, both grew up in Jewish families in New York, Schwinger in Manhattan, Feynman in Queens, and they both became pioneers in quantum electrodynamics.

Feynman's mother liked to point out to her son just how smart this Schwinger boy was. Schwinger was an extraordinarily brilliant guy, but brilliant in a different way. People always talked about them as being competitive. It was clear when we spoke to Schwinger that he had that kind of barbed respect that you have for a worthy adversary.

He clearly wasn't all that fond of Feynman. Feynman also spoke about it, and he said that he thought that people like us made a bit too much of their rivalry. And he said it was more like two people running a race. But it's, you know, fundamentally a friendly competition because they're both pushing each other.

In 1965, when Feynman was awarded the Nobel Prize in physics, he shared it with Schwinger, as well as the Japanese physicist, Shinichiro Tomonaga. I'd asked him to explain what he'd done to win the Nobel Prize. And he started talking about quantum electrodynamics. And of course, I really couldn't understand this. I'm Christopher Sykes. I was a documentary filmmaker for many years for the BBC and Channel 4.

I found myself at some point saying, was it worth the Nobel Prize? Which did produce, I have to say, a really classic response. I don't understand what it's all about or what's worth what. And if the people in the Swedish Academy decide that X, Y or Z wins the Nobel Prize, then so be it. I won't have anything to do with the Nobel Prize. I don't like honors. I appreciate it for the work that I did.

And for people who appreciate it, and I notice a lot of the physicists use my work, I don't need anything else. I've already got the prize. The prize is the pleasure of finding a thing out. I don't believe in honors. And that's why we called the finished film The Pleasure of Finding Things Out. The story goes, like, the first call was, you know, 3 a.m. or something. And I'm sure that was very exciting. And then I think reality, you know, he put the phone down, and then it started ringing with...

press and so forth. And then I think the reality of, oh, I don't really want all this. Does that come with, you know? Then he said to a reporter, hey, time out. Can we, off the record, can I ask, is it possible for me to, what's the word, reject this? And the reporter said, no,

No, that's not something that's going to happen. I mean, look, he was disdainful of all of these honorific types of things. I'm Stephen Wolfram, and I do science and technology research.

He was, I mean, I would probably go further than him and say any field for which there is a prize that's defined is a field that already has had its best days behind it. It's a field that barely has a name that's going to have the most fertile moment. I happened to get one of these MacArthur Awards in the very first batch of those things.

Feynman took me aside and said, "Look, just don't make this mean that you think people have big expectations for you." He was almost like prizes are a damaging thing to people, particularly early in their careers. One of the things that my father taught me beside physics was disrespect.

for respectable... for certain kinds of things. For example, when I was a little boy, in a roto gravure, that's printed pictures in newspapers, first came out in the New York Times, and he opened a picture, and there was a picture of the Pope with everybody bowing in front of him. And he'd say, "Now look at these humans. Here's one human standing here, and all these others are bowing. Now what is the difference? This one is the Pope, and those are the ordinary people." He hated the Pope anyway. And he'd say,

The difference is epaulettes, of course not in the case of the Pope. Maybe it was a general. It was always the uniform, the position. This man has the same human problems. He eats dinner like anybody else. He goes to the bathroom. He's a human being. Why are they all bowing to him? Only because of his name and his position. Because of his uniform. Not because of something he especially did. He, by the way, was in the uniform business, so he knew what the difference was with a man with the uniform off and the uniform on. It's the same man for him.

To be clear, Richard Feynman did not refuse or reject his Nobel Prize. He attended the ceremony in Stockholm. And by the looks of the many photographs in the archives at Caltech, he very much enjoyed himself. We visited those archives with his daughter, Michelle.

She came across something else that was interesting. So I love this. Everything that he was sort of like, I don't like honors and I, you know, can I return this prize? All of that. This is so like, it's

It's such a lovely, lovely thank you. This paper she found is her father's Nobel Prize acceptance speech. Some background. Feynman had been outwardly cranky about the award, even complaining about the fact that he'd have to rent a tuxedo. But apparently he had a change of heart. Your Majesty. Your Majesty.

Your Royal Highnesses, ladies and gentlemen, the work I've done has already been adequately rewarded and recognized. Imagination reaches out repeatedly trying to achieve some higher level of understanding until suddenly I found myself momentarily alone before one new corner of nature's pattern of beauty and true majesty revealed. That was my reward.

Then, having fashioned tools to make access easier to the new level, I see these tools used by other men straining their imaginations against further mysteries beyond. There are my votes of recognition. Then comes the prize and a deluge of messages from friends, from relatives, from students, from former teachers, from scientific colleagues, from total strangers, formal commendations, silly jokes, parties, presents, a multitude of messages in a multitude of forms.

but in each i saw the same two common elements i saw in each joy and i saw affection you see whatever modesty i may have had has been completely swept away in recent days the prize was a signal to permit them to express and me to learn about their feelings each joy though transient still

repeated in so many places amounts to a considerable sum of human happiness and each note of affection released thus one upon another has permitted me to realize a depth of love for my friends and acquaintances which I had never felt so poignantly before for this I thank Alfred Nobel and the many who worked so hard to carry out his wishes in this particular way

And so, you Swedish people, with your honors and your trumpets and your king, forgive me. For I understand, at last, such things provide entrance to the heart. Used by wise and peaceful people, they can generate good feeling, even love among men, even in lands far beyond your own. For that lesson, I thank you. After the break, what was Feynman like as a professor? Not in the catalog.

No grades. What was it? It was Feynman standing in front of the blackboard saying, ask me anything. I'm Stephen Dubner, and this is Freakonomics Radio. We'll be right back. What does it mean to be rich?

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Chapter 5: Feynman the Professor The word most commonly attached to Richard Feynman would seem to be "genius." That is the title of the definitive Feynman biography, published in 1992 by James Glick. Feynman himself did not like the label. He maintained there was nothing exceptional about his intelligence. So how did he become a giant of theoretical physics?

Here's how Feynman put it in a BBC documentary called Fun to Imagine. You ask me if an ordinary person, by studying hard, would get to be able to imagine these things like I imagine. Of course, I was an ordinary person who studied hard. There's no talent, a special miracle ability to understand quantum mechanics or a miracle ability to imagine electromagnetic fields that comes from

without practice and reading and learning and study. You take an ordinary person who's willing to devote a great deal of time and study and work and thinking and mathematics, then he's become a scientist. The physicist John Preskill. Feynman officially taught an undergraduate class at Caltech only for two years, and those were captured by some now-famous books called the Feynman Lectures on Physics. They're three big red books

Feynman worked very hard on that. He thought very deeply about how to organize the material, and they're rather extraordinary. I think I didn't really appreciate them until I was a more senior physicist. When he gave a talk or a lecture, he was kind of mesmerizing and really grabbed your attention. I have the privilege of calling your attention today to what is probably one of the most far-reaching generalizations of the human mind.

And while he spoke, things would seem extraordinarily clear and obvious. And many people had the experience that then afterward, when you tried to reconstruct the arguments, you'd find it very difficult. Somehow, he made it seem easy, but there were nuances that he made seem natural when he spoke of them. But then when you tried to follow the path again, were actually very subtle. And what is this law of gravitation?

It is that every object in the universe attracts every other with a force proportional to the mass of each and varying inversely as the square of the distance between them. If you like mathematics, you can write that same thing as an equation. The blackboard choreography would be very carefully thought out. They would end exactly on time. They had been prepared with great care, so he really put everything into it. The filmmaker Christopher Sykes.

I turned up at Caltech for this lecture, and I have to say it was extraordinary because Feynman, I came in and there were about, I don't know, 16 or 20 students all wearing shorts and trainers with their feet up on the tables and stuff, and none of them were taking any notes. Feynman was lecturing, and I couldn't, of course, understand anything. It was really high-level quantum physics. But towards the end, he looked up at the clock and he said, look, we've only got

eight minutes left and this particular problem we're talking about he said there's two ways of tackling it one's very elegant and clear and easy and the other one is just incredibly messy he said but we've only got a little time left so I'll just deal with the incredibly messy one and I thought well this was great

Although that was the only official undergraduate class that Weiman taught at Caltech, there was an informal class of which he taught for many years. It was not in the catalog. It was not documented anywhere. The freshmen called it Physics X. It was intended especially for freshmen. And by word of mouth,

it would become known that Feynman was going to be in a certain classroom at a certain time and that you could come and interact with him. Not in the catalog, no grades. What was it? It was Feynman standing in front of the blackboard saying, ask me anything. And there were rules. The rules were

Don't ask me about coursework. Don't ask me how to do this problem in such and such a course. Don't ask me about somebody's paper. I haven't read it. I don't care about it. Don't ask me about somebody's theorem. I don't know that either. I can't tell you. Ask me about trying to understand something. It doesn't matter what it is. Everything is interesting. My colleague Kip Thorne remembers that when he was a freshman, that must have been around 1958,

He heard the rumor. He went to the rumored room at the rumored time and finally was there. And he said, okay, what do you want to talk about today?

And somebody says, oh, let's talk about waves on Mars. Where that came from, I have no idea. So he starts to talk about waves on Mars. Well, let's say there's not really water on Mars, but let's suppose there is. Maybe there were oceans before. But the gravity is different than Earth. So that means water waves will propagate at a different speed. And he worked that out.

But another thing, the atmosphere is thinner, so there's less wind, and that's not going to work up, you know, such high waves blowing across the surface of the water. How high will the waves be? And he worked that out. And Kip came away from this enormously inspired. You know, you can just look at nature, and you ask questions, and you can calculate answers. Seamus Blackley. I don't think Feynman was trying to teach science.

students who were not going to understand what he was saying. He wasn't trying to reach out in an inclusive way and elevate everyone. Caltech is very hard on their undergraduates, right? There's like a Lord of the Flies thing going on. In the 60s, it was even worse. It's a cultural thing that Caltech struggles with to this day. And those lectures are built for those people who are going to go somewhere. And those were the people that Feynman was interested in.

I don't mean to make him out to be such a prick, but I think that he was really interested in the really bright students who asked really bright questions and got him thinking about stuff. Now, that said, he obviously spent a huge amount of time in his career communicating ideas in a very clear way to general audiences. But I think those are two separate things. Because of the success of science, there is a kind of a...

I think a kind of pseudo-science that social science is an example of a science which is not a science. They follow the forms. You gather data, you do so and so and so forth, but they don't get any laws. They don't have them found on anything. Maybe someday they will, but it's not very well developed. But what happens is, at an even more mundane level, we get experts on everything that sound like they're sort of scientific. There's all kinds of myths and pseudo-science all over the place.

Stephen Wolfram. His distaste for social science came from the fact that it just is not a bedrock kind of field. I'm sure if he was talking about that or about economics or something like that, he would say, what is this? Is it something where you have axioms for how people work and then you're trying to figure out the consequences? That's kind of more like the way he was doing physics. There are these underlying laws of physics and then we're working out their consequences. Well, at Caltech, he was a hero right up to the end.

admired by his colleagues and by the students. I don't know who worshipped him more. And, you know, that he was an extraordinary person and thinker was appreciated. Now, he was a bit of a narcissist. You know, he was a show-off. He did it in a way which maybe irritated some people, which was also charming.

And it's not like he tried to hide it. You know, he thought pretty highly of himself. I mean, he did want to have quirks and to have stories about him. You know, he really wanted to create this persona. Lisa Randall, and I'm a physicist professor at Harvard. I do theoretical particle physics and cosmology. ♪

This sounds kind of obnoxious, but if you're smart enough to do particle physics, you're probably smart enough to do other jobs where you make a lot more money, you get a lot more prestige in other ways. So, you know, sort of your currency is, you know, how important you're considered and what you've accomplished and what people think of you.

So for some people, that's more important than others. He's a born performer. He clearly liked the adulation. You know, I think he was a decent guy. And what was really interesting is to read these pages and pages sometimes of letters that people wrote. That's Michelle Feynman again. The letter is, Hello, my name is Gary Vership.

At the present time, I'm a junior at UC Berkeley and I'm majoring in physics. I would be interested in hearing your views on the present fields of research in physics. As of now, I'm interested in either plasma, space, or low-temperature physics. I would appreciate it very much if you could send me some information on your current research efforts. My address in Berkeley is...

Alright, so then he says, "I'm sorry, but neither you nor I have the time it would take for me to expound my views on the research being done in physics, and I am interested in all fields." I mean, it's honest. I don't think he's being mean. It's just, I'm gonna tell you like it is.

You ask me, I'm going to tell you I don't have time to solve all your problems. And just FYI, I'm interested in everything. He didn't have a lot of judgment with people, you know. So he went to a topless bar and he liked watching the girls and he liked drawing them. And, you know, he would have conversations and at some point...

People were trying to shut the place down because, I don't know, they'd had enough of it or something. And so he showed up in court and said, no, no, this is a fine place. I go here all the time. Everything's above board. And it could have been also true that the neighbors were right about all of their concerns because ultimately the place did shut down. My point is that he had his own moral compass, which he was very strongly opposed.

committed to. We had a lot of artist friends that I think were incredibly attractive to him because they were just free thinkers. I grew up right here. Richard Feynman would come in and sit right here and my dad would sit over there. Feynman was an ordinary dude. You meet him, you thought he was like some dude off the street in New York. My name is Alan Zorthian and I am a architect.

My dad was Gerir Zorthian. He was an artist. That was his main profession. He was very good at it. My father met Richard P. Feynman in the mid-50s when Feynman was playing bongos at a party and my dad needed to make a big splash so he was dancing around and they became good friends.

The friendship continued until Richard's death in 1988, and they were very close. The Zorthian Ranch is in the hills above Pasadena. The land is steep and scrubby. It looks a lot like where they used to shoot MASH, the old TV show with Ellen Alda, which is actually not far away.

The ranch itself is a sprawl of farm animals and shaggy dogs, sculptures and mosaics, and buildings quite a bit past their prime. In its heyday, when Jiraiya Zorthian was holding court, the ranch was known for its bohemian vibes and wild parties. Richard Feynman spent a lot of time up here. He and Zorthian had a special relationship. You know, they would argue. They liked to express their opinions.

One of the things they were talking about was, you scientists don't appreciate beauty. It's a friendly type argument. It went until very late in the evening, and then he went home and he started thinking about it, and he called my dad up and said, well, look, I think the problem is I don't understand what you do and you don't understand what I do, so why don't we educate each other? And then they started doing this thing, and they were serious. They did it.

They decided, I don't remember, every other Sunday, I think it was, Feynman would come up. My dad did the first one. He was going to teach Feynman how to draw because Feynman was interested in art. And so he came up. He said my dad was a good teacher. My dad was good. He was positive and stuff. So he started to learn to draw and he eventually became very good. And then he tried to teach my dad something about physics and my dad didn't learn a damn thing.

Feynman liked the idea that my dad could get women to pose nude, too. So my dad would send him models and stuff like that. When you read Feynman's own books, you see that he was completely enamored with women.

He tells story after story of chasing women in ways that ranged from comic to cruel. In the beginning, he had been madly in love with Arlene, his first wife. But she died from tuberculosis in her 20s, and it's unclear if he ever fully recovered from that. He wrote her a love letter two years after she died. "I'll bet you are surprised that I don't even have a girlfriend except you, sweetheart."

But only you are left to me. My darling wife, I do adore you. I love my wife. My wife is dead. P.S. Please excuse my not mailing this, but I don't know your new address. He did get remarried to Mary Louise Bell, whom he met while teaching at Cornell.

They were, by all accounts, a horrible match. The marriage lasted just four years. In their divorce, Bell claimed that she was subjected to a variety of cruelties, including violence.

For years, Feynman had cultivated a reputation as a womanizer of the worst sort. James Glick, in his book Genius, reports that while he was teaching at Cornell, Feynman slept with undergraduates and the wives of graduate students. Here's Charles Mann. He was an old-fashioned sexist. Every woman that we ever talked to about this would say this. But they would also say things, I know a female physicist who, the way she put it was this,

Feynman would do these sexist things like say, would you give me a cup of coffee? You know, these classic sexist tropes. But she said, I never met a person who helped me understand the physics better. She said, ultimately, I'm a physicist and that's what counts. Yes, this was annoying, incredibly annoying. I wanted to slap him. But when he talked to me about physics, I loved it. Lisa Randall. When

When I was entering the field, I went out of my way to learn the physics of people and to learn as little about their personality as possible. Because I have to say, many times when I found out about the people, I was disappointed. I just felt like I didn't want to know it. I just wanted to focus on the physics itself. Look, you can try to justify him, but the fact is he was proud enough that it becomes the centerpiece of his book.

I do think we give people a free pass for things they do to women in ways that we don't give them a free pass in things that happen to other people. I mean, look, I've been to Caltech recently. I really like being there. It's really fun. But when I took the PSAT, I did very well. And I was sent a pamphlet that said, literally, what's a nice girl like you doing in a place like Caltech? And I thought, wow, that is one place I do not want to go.

You know, it's very interesting in this day and age because growing up in the age of the women's movement, a lot of other movements, a lot of it was about not focusing on your identity, being just considered like anyone else. And today's identity politics is very much the opposite. So it's very confusing. ♪

Coming up, how much did Richard Feynman come to regret his reputation? Feynman got the obituary from the L.A. Times. He was able to read his own obituary. I'm Stephen Dubner. This is Freakonomics Radio. We'll be right back. T-Mobile has home internet on America's largest 5G network for 50 bucks per month. It's how I stream the game. Oh, yeah, that one's out there.

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it PBC Incorporated to try the flavor merger of the century, Jif, PB, and C. Chapter six, Feynman, the parent. Michelle Feynman still lives in Pasadena, not far from the house where she grew up.

As a shy seven or eight year old, I didn't relish the idea of telling a friend, no, I don't really want to spend the night at your house. And so somehow my dad and I had this conversation and he said, well, I got an idea. We'll have a code. If you say so-and-so wants to know if I can spend the night at

I'll say, no, I'm sorry, not tonight. And then I'll be the bad guy. And if you say, is it all right? Or if I ask with myself as the first, you know, I'm wondering if I can, is it okay if I spend the night, something like that, then I'll give you an honest answer. And maybe it's yes, maybe it's no, but at least we know where we are. And

Honestly, he nailed it every single time. We're speaking with Michelle in the garden of the hotel in Pasadena where the Freakonomics crew is staying. We chose this hotel, the Huntington, because it is where Michelle's parents were married. On September 24th of 1960, Richard Feynman took Gwyneth Howarth to be his third wife. She was from West Yorkshire, England. How did they meet?

They met on a beach in Switzerland because she had aspirations to travel the world. And she thought a fun way, she liked children, and a fun way would be to be an au pair and to live in people's houses and take care of their children and see the world. So she went to France and then to Switzerland and met my dad. I think he was there for a conference and...

Apparently, he said kind of a joke, like, "Oh, you could come to California and take care of me." And then the next day, he saw her again and said, "You know, that wasn't... I'm sorry, that was out of line." And she said, "No, no, I'll come to California. I'd love to. I'd love to come to America, and that sounds great."

They rented a house, completely a platonic relationship. He was in the front of the house, she was in the back, I guess. At some point, he realized that he was falling in love with her, and...

He thought, no, no, too soon, too fast, too impulsive. So he went to a calendar and he paged forward about six months and he marked the date on the calendar and said, if I still feel the same way on this date, I will ask her to marry me.

The Pasadena Freeway is right near here, and the story is they hopped on the freeway right after the wedding, and they ran out of gas. I mean, it's a good litmus test for a relationship, you know? How is this going to work? And to my mom's credit, she just laughed, and, okay, I guess this is how it's going to go. And they were, you know, they were in it.

The Feynmans had two children, Michelle, whom they adopted in 1968, and Carl, who was born to the couple six years earlier. Today, Carl is a computer scientist living near Boston. When I was 17, I didn't get along with my parents great, which was basically the period when I was deciding where to go for college. I wanted to go to one of the schools where they taught AI, and that was MIT, Carnegie Mellon, or Stanford. MIT was my first choice.

And MIT was the furthest one away. It was on the other side of the country. So I wanted to get away from my parents and, you know, be an independent, faraway guy. So I moved there. I almost immediately regretted it, being so far away, because my relations with my parents were then improved. But by then I was committed, and by the time I graduated, I had decided that I loved Boston. So I stayed out here. He was a nice man who would tell you how the world worked. We'd go for walks after dinner.

We'd go out on the streets or a nearby golf course. And we'd talk about everything under the sun. He'd tell me wonderful stories about his time at the Manhattan Project. You know, when I was a teenager, he would repair his car a lot. He would always dive right in. He didn't know anything about car repair. So we'd dive right in and then he'd sit back and look at it with his hand on his chin and theorize. And then dive back in again and, you know, usually make things worse. He did take me to one football game.

And afterward he says, so what do you think? And I said, I really didn't like that. I don't think I want to go to any more football games. And he was like, oh, thank God. I mean, you know, I was very into science. I read science fiction. I drew lots of pictures of spaceships. I was that kind of kid. And, you know, he thought that was great and took me to Hughes Aircraft, to their rocket factory and stuff like that. It was great as a little kid.

I was in that world. I wanted to be, you know, one of those cool people with the short-sleeved white shirts and the black ties. Yeah, we had a rocket scientist living across the street.

Well, he enjoyed being a father. And so we have Gwyneth to thank for that because she gave him a stable family life. That is Ralph Layton. He is a longtime family friend who was Feynman's writing partner and drumming partner. Carl and Michelle were delights to him.

and he learned that each of them liked different things about him. So Carl responded to certain things and Michelle responded to other things. I could just see the happiness and fun when I came over for my Wednesday evening proper meal.

I was a stay-at-home dad, and a lot of Feynman's philosophy came out with our kids. You know, just one little saying, which I kept thinking of, is don't take advantage of your position. So you never say, because I said so. It's better to have that philosophy of ignorance. Like, oh, yeah, that's an interesting question. I don't know the answer to that. Let's go find out.

So he was on the curriculum commission, and so they all looked at textbooks and decided that, you know, this one should be approved and this one should not. My mom talked about how passionate he was about it. She said he would be in the basement and it was like an explosion from down below because he would just be incensed by the inane math problems. Like, you know, Johnny sees a star of 3,000 degrees. He sees another star of 6,000 degrees. What's the total number of...

When would you ever need to know any of that in nature? You just wouldn't. But he had a collection of good math textbooks. So I would go down to his study and just, you know, read these math textbooks for high schoolers.

when I was a little kid. So I learned a lot of math that way. When I was doing math in high school, my dad would look over my shoulder and say, oh, hang on. I got a good way you could do that. I can think of five ways and let me just show you one. And so I would take it to school and go check this out. And the teacher did not share my enthusiasm and said, well, I'm

No. I mean, yes, you got the right answer, but no, that's not what we're doing here. And so at a certain point, my dad had enough and went to go see the teacher. And I don't think the teacher knew who he was. My dad was really, really trying to play it cool and just be sort of, you know, I'm Michelle's dad. And at some point, the guy said something like, you should try reading a math book.

And I can just imagine my dad sort of holding it all in. And then at that point, he just couldn't. He just pulled himself up and said, sir, I have written math books. And then I think the counselor told the teacher who my dad was. And the next day, I was not in that class anymore. He didn't mind being a confused old man.

We'd be in a restaurant and he'd look at the menu and get out his glasses and be confused in front of the waiter and take a long time. And now the confused old man will look through the menu. You know, he didn't mind being that. And, you know, at other times, well, he did some pretty impressive stuff when he wasn't afraid to say, yeah, I did some pretty impressive stuff.

When my brother went to MIT, he met a like-minded person, Danny Hillis. Danny and Cheryl Handler were starting a company called Thinking Machines. I worked with him later at Thinking Machines Corporation, and he was clearly very into computation by that point, very interested all over it. ♪

There are some things that a computer does much better than a human and you'd better remember that if you're trying to compare machines to humans. He felt like physics was kind of tapped out, that he was past the point of making contributions because both he changed and the field had changed. And so he's more interested in computing. The machine we were building was called the connection machine. It was a very strange computer.

And he figured out a way to get it to do cosines and logarithms and other transcendental functions. It was very poor at multiplication, but it was very good at addition and shuffling bits around. And he figured out a way to do transcendental functions without multiplication, just by using the patterns of the bits to do something extremely clever, whose details I no longer remember. In 1978, Feynman was diagnosed with abdominal cancer.

For the next decade, he had multiple treatments, including surgeries. It was suggested that his cancer may have been caused by exposure to nuclear radiation at Los Alamos. Feynman refused to consider that possibility. Ralph Layton. I got a call from the L.A. Times wondering if he was near death. And I said, well, he's for the moment doing pretty well. But have you written up his obituary already?

And they said, yes. And I said, oh, wow. Would you mind sending it? Could I show it to the chief? And the guy said, okay, but I'm not changing a word of it. And so Feynman got the obituary from the LA Times. He was able to read his own obituary. You can find it online. And in the first paragraph or second paragraph, he mentioned he had this reputation for skirt chasing or some

kind of description of that, and Feynman shook his head and was...

Pretty sad that that would be something mentioned so soon because I think he kind of played it up just to look like, you know, scientists aren't all nerds and, you know, can't get anywhere or whatever. I think there was a lot of sort of image making and then he realized it kind of went too far, but he couldn't change it because the L.A. Times guy said, my condition is I'm not changing a word.

A few months later, in February of 1988, Feynman died with his family close by. Here were his last words. I'd hate to die twice. It's so boring. You know, there was something on a blackboard right after he died. They preserved the blackboard for a while, took pictures, and it said, what I cannot create, I do not understand. He liked to construct things from the ground up. That's basically it.

By this time, Gwyneth Fineman was also sick with cancer. So this is Mountain View Cemetery, where my parents bought a plot. They were sick fairly early in my life. They took the whole responsibility of all of that very seriously, and they did their will, and they bought a plot where they liked the surroundings and thought this was a beautiful area.

Yep. In loving memory. And then it says Feynman, Richard P. and Gwyneth M. And he has the dates 1918 to 1988. And she's 1934 to 1989. You know, sooner or later, everyone's going to lose their parents.

I'm lucky because there's all this material that's, I can just, what did his voice sound like? Let me listen to it. You know, I have those recordings. When I read his books, I can hear his voice again. Well, there's a lot of stories about it, but it's getting late, so we'll let it go at that. Next time on Part 3, The Vanishing Mr. Feynman. He said, have you ever tried psilocybin mushrooms? And he said, no. And I asked, would you like to?

Feynman quit drinking when he was young, and as much as he was interested in different states of consciousness, he didn't want to do drugs out of fear it would damage his favorite toy, his brain. But when he knew the end was near, he took a trip or two. We'll hear about that and what would Feynman think about how science works today. One of the sad things that's happened is that the search for truth has become politicized.

That's next time on the show. Until then, take care of yourself. And if you can, someone else too.

Freakonomics Radio is produced by Stitcher and Redbud Radio. You can find our entire archive on any podcast app or at Freakonomics.com, where we also publish transcripts and show notes. We make some other shows, too. The Economics of Everyday Things, No Stupid Questions, and People I Mostly Admire. You can get all of them on your favorite podcast app. Just look for the Freakonomics Radio Network.

This episode was produced by Zach Lipinski. Special thanks to Richard Tai and Elisa Piccio from the Caltech Archives, to Christopher Sykes and the BBC for the audio from their Feynman documentaries, to the Library and University Archives at the University of California, Santa Barbara, for their recording of Feynman's Los Alamos from Below lecture, to the Esalen Institute for audio from Feynman's Tiny Machines talk,

and to James Glick, author of the Feynman biography, Genius. Also, big thanks to Nicholas Osorio and Music Mind for all the recording help in Pasadena. Our staff includes Alina Kullman, Eleanor Osborne, Elsa Hernandez, Gabriel Roth, Greg Rippin, Jasmine Klinger, Jeremy Johnston, Julie Kanfer, Lyric Bowditch, Morgan Levy, Neil Carruth, Rebecca Lee Douglas, Ryan Kelly, and Sarah Lilly.

Our theme song is Mr. Fortune by the Hitchhikers. All the other music you've heard today was composed by Luis Guerra. As always, thank you for listening. Oh, that was fun. I haven't talked about Dick Feynman for a long time. The Freakonomics Radio Network. The hidden side of everything. Stitcher.

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